CXMT Begins Mass Production of 11.95nm DRAM
CXMT announced on the 20th that it has begun mass production of its fifth-generation DRAM technology platform with a 11.95-nanometer circuit spacing. ChangXin Memory Technologies (CXMT) of China said it has started mass production of the fifth-generation DRAM platform with a 11.95nm circuit spacing (a nanometer is one billionth of a meter, the unit used to measure the width of circuits inside a chip). According to industry sources on the 20th, CXMT unveiled the new platform at the 2026 World Manufacturing Convention held in Hefei, Anhui Province, China.
DRAM is a memory chip that temporarily stores data in computers and smartphones, and the narrower the circuit spacing, the more data can be packed into the same area. The company said it reduced the spacing to 11.95nm by making the data storage areas inside the chip denser, applying 'quadruple patterning' technology, which involves repeating the same manufacturing process multiple times to create finer circuits. Luo Xiaodong, vice president of CXMT, said, "Our current process technology is on par with the most advanced processes in mass production in the industry."
According to CXMT, the fifth-generation platform produces at least 50% more chips per wafer than the fourth generation, which also improves power efficiency and cost competitiveness. CXMT also unveiled two 24Gb LPDDR5X products based on the new platform. LPDDR5X is a low-power DRAM used in mobile devices such as smartphones. The company said both products have already entered mass production and are being supplied for flagship smartphones from major Chinese handset makers.
CXMT's market share is also rising. According to Counterpoint Research, CXMT's share of the global DRAM market rose from 4% in the second quarter of last year to 10% in the second quarter of this year. Its first-half revenue this year grew roughly tenfold year-on-year, and it turned to a net profit.
The mass production milestone comes as China seeks to reduce its reliance on foreign technology, amid U.S. restrictions since 2022 on China's access to advanced semiconductors, chipmaking equipment and related software. Goldman Sachs forecasts that CXMT will supply about half of China's DRAM demand and up to 40% of domestic HBM demand by 2028.
